VTech Telecommunications Ltd 80-4258-05 Manuel D’Utilisation
V
TECH
E
NGINEERING
C
ANADA
L
IMITED
TITLE
PDL MK3 Theory Of Operation
MODEL
SPP-ID970/1
Reference: PRC XXX
Revision: 1
Page: 3 of
211
This document is proprietary to V
TECH
E
NGINEERING
C
ANADA
L
TD
.
107275THEO-970
Specifications are preliminary and are subject to change without notice.
Table of Contents
1
Complete System Description................................................ 5
1.1
Introduction............................................................................................ 5
1.2
Feature List............................................................................................. 5
1.3
System Block Diagram ........................................................................... 6
1.4
Handset Block Diagram.......................................................................... 7
1.5
Base Block Diagram ............................................................................... 8
2
RF Section Overview ............................................................... 9
2.1
Introduction............................................................................................ 9
2.2
Frequency Tables................................................................................... 10
2.2.1
Handset Frequencies.................................................................................................. 10
2.2.2
Base Frequencies....................................................................................................... 11
2.3
Block Diagram ........................................................................................ 12
3
RF Section Detailed Operation ............................................... 13
3.1
Antenna Section ..................................................................................... 13
3.1.1
Antenna ...................................................................................................................... 13
3.1.2
SAW Duplexer ............................................................................................................ 13
3.2
Receive Section ...................................................................................... 13
3.2.1
RX Amps and SAW Filter ............................................................................................ 13
3.2.2
RX Mixer..................................................................................................................... 14
3.2.3
RX VCO and LO Buffer ............................................................................................... 14
3.2.4
RX Synthesizer ........................................................................................................... 15
3.2.5
IF Amplifier Stage ....................................................................................................... 15
3.2.6
IF Filtering .................................................................................................................. 15
3.2.7
Mixer, IF Amplifier, FM Demodulator (Temic IC).......................................................... 15
3.3
Transmit Section .................................................................................... 16
3.3.1
TX Amp....................................................................................................................... 16
3.3.2
TX VCO ...................................................................................................................... 16
3.3.3
TX Synthesizer/PLL.................................................................................................... 16